I'm curious why you think it allows for more corruption than the US system. Something I find compelling about the German system is that the primary point is not to decide guilt or innocence of the accused, but to determine the truth. (See https://ir.lawnet.fordham.edu/ilj/vol34/iss2/5/).
Plea bargaining in the US is, in my opinion, a corrupt practice.
> I'm curious why you think it allows for more corruption than the US system.
I didn't make that claim in the big picture, I was talking specifically about the the role of jurors in terms of evaluating the credibility of expert testimony.
My concern with the idea of "professional jurors" is that they represent an easy target for corruption in the form of coercion, bribery, etc. How can you ensure that a professional juror is actually impartial and fair? If jurors are always coming from the same pool of people, won't they develop relationships with prosecutors and the like that may influence their impartiality?
Some such systems, such as the one in Germany, don't have "jury of your peers," but a panel of professional jurists who act as both judge and jury.